USE SMS

SELECT COUNT(1) FROM TSMS_RETURN_HUNDSUN WHERE C_RETURN <> ''

TRUNCATE TABLE tsms_send_log
TRUNCATE TABLE tsms_send_hundsun
TRUNCATE TABLE tsms_return_hundsun
TRUNCATE TABLE tsms_mo

SELECT * FROM TSMS_RETURN_HUNDSUN WHERE C_RETURN = 'a'

